Carrier for braiding machines



March 13, 1928. 1,662,454

W. E. COOK CARRIER FOR BRAIDING MACHINES Filed May 29. 1926 2 Sheets-Sheet l INVENTOR ATTORNEY March 13, 1928. I 1,662,454

W. E. CQOK CARRIER FOR BRAIDING MACHINES Filed May 29. 1926 2 Sheets-Sheet 2 INVENTOR Patented Mar. 13, 1928.

U N IT St ll T? ES @{FFIC WILLIAM E; coon, or new Yonx, n; Y.

CARRIER FOR BRAIDING MACHINES:

Application filed-May 29,

sult of the breakage of thethread or strand,

the automatic stoppage of the machine is caused.

Low speed 'braiders in which carriers oi this type are used, are ordinarily-operated at 240 R. P. Ms, speeds'iir excess otth1s,'re-

sulting in breakage of thethread or strand with a frequency which makeshigher speeds of such machines impracticable. in largemeasure to the inertia of the traveller or weight at the opposite ends oi its re ciprocation, causingsuddenstresses to be ap-- plied to the thread orstrand' when the paying out thereof is required as when the car-- rier is moving away from-the axis about which the braid isbeing formed,- or to the creation of slack in thethread or strand as a result oil-such inerti-a: when the carrier is moving toward said axis, during which time the traveller or iweight should be operative to make up such slack; i

The dil'lieulties in synchronizing the reci rocatory movement of the traveller or er, have resulted ina necessary curtailment in the speed of travel ot-the carrier, resulting in a necessarycurtailment in the output capacity of the-braiding machine.-

lVith the above conditions in mind l have ment of the traveller resulting from the breakage of a thread or strand, thus permitting the use of atravellerofvery light weih'ht so that the moving inertia thereof This isdue ht with the sinuous movements of the 1926. Serial No. 112,424.

will be reduced to a minimum and "a reversal in the direction or" movement- ,thereof is of breaking stresses upon the thread or strand.

permitted without the development In such a carrier, the traveller may have rapid movement imparted thereto when taking up slack by a springer/very light tension, the compression of this spring whenpaying out the thread or strand offering insufiicient resistance to the upward movement of the traveller to develop such breakingstresses.

Furthermore, with a construction 0f carrier embodyingthe invention, the thread-b1 strand at all times will-be subjected tosubstantially uniform tensiomng conditions from the traveller.

1V ith a carrier embodyingcharacteristics, such as are above referred to, much higher speeds inay be attained in the ordinary braiding machines,- such carriers, however, being. particularly" adapted for use with inachines of aconstruction having-aspeed two or more times that of the ordinary bra der. My invention further contemplatesa I simple construction and arrangement of parts operative upon the member ot'the stop,

mechanism mounted upon the carrier, and the means normally-maklngtlnsmember of ino iierative relation being so constructed and positioned as to cause the release of 'said member in the event of an excess downward movement of the traveller. In this manner, I am enabled to secure the desired weight and strength in said member of the stop mechanism and yet place'no limitation upon the sp'eed ot the machine because of conditions arising when the load of this stopn'iember is applied to the thread or strand. In conjunction with the particular form of stop mechanism and traveller above referred to, l mayva-nd preferably provide a tensioning device between the traveller and the cop or bobbin"whichwill'ensure a substantially uniform and--adjustable-tension between the traveller and the cop or bobbin, thus minimizing as tendency of the overrunning of the cop. or bobbin.

. Heretofore in braiding machines, it has been found impracticable to use full-length bobbins or cops asth ey come from the spinning 't'rame, the practice having been to rewind the thread or strand upon special short bobbins with a special wind in order to avoid possible entanglement or snarling of the thread or yarn adjacent the bobbin or cop with a resultant breakage thereof and the automatic stoppage of the machine.

In order to etl'ect economy in the operation of abraiding machine, I preferably so coin struct; a. braider to admit of the use of the full length bobbins or cops. by providing a specially constructed guide for the thread or strand between the point of takeoli' from the bobbin or cop and. the guide or eye leading to the tensioning device, which special guide will compensate for the vertical change. in the point ot. takeoti' from the bobbin or cop, and still further minimize likelihood of entanglen'ient or snarling ot' the thread or strand adjacent; the bobbin or cop.

A carrier embodying my invention has other special desirable features of construction contributing toward high elliciency in av braiding machine resulting from its use, all of which will more fully appear hereinatter.

The invention consists primarily in a carrier for braiding machines embodying therein a base, a spindle for a bobbin r cop, a stem, a. traveller slidably mounted on said stem, a spring acting to normally force said traveller towards said base, a stop member unconnected with said traveller, and slidably mounted adjacentsaid base, and a latch member engageable with said stop member,

' and positioned in ope able relation to said traveller, whereby excessive niovement of said traveller by said spring will actuate said latch to release said stop member; and in such other novel features oi construction and combination of parts as are hereinafter set forth and described, and more PZU' ticularly pointed out in the claims hereto appended.

l'leferring to the drawings,

Fig. l is a front view of a. carrier embodying one form of the invention;

Fig. 2 is a side view thereof;

Fig. 3 is an enlarged perspective view of one term of traveller, latch member and stop member;

l ig. a: is a view of the lower part of a dill'erent term of traveller, latch member and stop member, broken away to disclose the latch lllQll'lbGl;

Fig. 5 a side view of Fig. 2; and

Fig. (3 is a detail view of the form of latch member shown in Figs. 4 and 5.

Like numerals refer to like parts throughout the several views.

in the embodin'ient of the invention shown in the acconipanying drawings, the carrier has a base provided with parallel spaced top and bottom plates and l1. a connecting web 12. and a bottom stud 13. Supported from the top plate 10 of this base is a spindle 14 for the bobbin or cop. Also sup 'iorttul from said top plate is a stem 15 upon which is slidably mounted a traveller 16 acted upon by a spring i? having a normal tendency to force the traveller downwardly or towards the top plate 10.

in the form of the invention shown in Figs. 1 to 53. the traveller ltl consists of a tubular member having a spline it; formed therein (o-operating with a keyway 19 in the stem 15 so as to prevent rotativc movement of the traveller. Secured to the traveller in any desired manner a guide loop, or eye 20.

(inc end ot the spring lT seats upon the top of the traveller 1(3 and the other end thereof seats upon a pin 12 passing through the stem 15. lhe upper part ol the stem 1.) is llat't'cned as shown at 22, and has at the top thereof, a guide eye 23, and toward the bottom ol' the portion 92 thereof. a pigtail or eye Ql. intermediate the eyes 23' and ill is an adjustable tensioning device such as is commonly used upon sewing machines. but having a guide eye 25.

The traveller 1U made as light as possible with due regard to durability. the spring 17, while of very light tension, being relied upon solely to impart the dmvnward movement to the traveller 16 for taking up slack in the threadv or strand.

Upon the side of the spindle ll opposite to that at which the stem 15 is located, I provide a guide 26 which is of a height. correspomling approximately with that of the spindle, said guide having tl'iereon, adjacent the bottom and adjacent the top thereol. stop members 27 and 25 limiting the vertical run of the thread or yarn about said guide.

The mechanisms heretofore described rc-- late to the control of the thread or strand in passing from the bobbin or cop to the point of application thereof to any particular objet-t.

l will now (lti-Ci'lbt. those parts of the carrier which. by co-rn'ieration with th traveller, are adapted to ca use the automatic stoppage oi a braiding machine in the event ol the breakage of the thread or strand. 'lhie mechanism comprises a member 29 slidably mounted upon the stem '15 adjacent the bot tom thereof. being guided in its uu'ivemcnts by this stem and by guide posts 13) and 31. "be general contour of this member 25) as shown, coincides with that commonly used upon carriers in which this member is connected with or forms an integral part of, the traveller. and therewith acts as a weight for taking up slack in the thread or strand or otters slight resistance to the paying out of the thread or strand according to the movements oi the carrier.

lly the construction described. the member 29 may be located fairly close to the top too Ilo

plate lO-of thebase and may be n'lade of any desired weight, although its short movement will ensure avsetting et the member for actuatingthe-stop-1nechanis1n, with a rapidity assuring reliability-in the stoppage of the-machine, and .avoiding possible overrunning of the machineafterthe breakage of athread orstrand. While the member 29 may be made of anydesiredweight, theconditions present with a construction 111KB- that above described are such that no great weight in the member -29-is required.

Carried'by the member 29- isa spring latch member 32 l1aving abevelled endf adapted to engage a-keeper- 3 l-upon the stem 15. The bevelled end of the latch member 32 is in the-path of movement of a striker member 35 carried by and movable with the traveller 16. The springlatch member 32 may be of verylight tension,-

merely sufficientto maintain its engagement with the stop member or keeper 3%.

notwithstandingthe heavy vibrations to which all parts ot'the &1'1'101" are SLIbJBCtGd while in useupon-abraiding machine, and particularly upon highspeed braiding -machines."

In the en'ibodiment of the invention shownin Figs 4 to 6 theconstruction is substantially the same as that heretofore described," the differences being merely in the details ott-the constructionof the t'aveller and 'the latch mechanism for the stop member- 29. In this form of the invention,

I provide a substantiallyfizit support 36 for mounted upon the stem andsis provided with a guide-or eye the-same as the traveller 16. The spring 17 and all parts relating to the control of the verticahreciprocatorymovementsor" the member '16" are the same. as heretofore described.

lnthisform of the invention the-stem 15 is slotted asshown at 37, and mounted there in is a spring latch member 38 adapted to pass through the uppenbearing opening-in the member 29 and have its hdoked end '39 engagethe undersurface of this member. Intermediate thehooked "end 39 of this latch member and the point of its support by the stem 15, I so form the'member as to provide a strikerportion 10 adapted to be engaged by the traveller 16 =a11d cause the retractionof the latch member to release the stop member 29. The downward movement of the traveller 16 is arrested by: a.stop pin 41' carried by the stem 15.

lVh ile-tl'ie form ot the invention shown in F igs-el to 6 has been found tongive satistactory results, 1tsmanufacture is some-- WlIHtJDOYG difiicultand expensive than the tormof the invention shownin Figs. 1*to 3. both by reasonof the additional number of parts andth'e-structural details of the'latch mechanism. 1

The form o-t'latch mechanism shown in Figs. 4 to 6, when a braiding machine 1S operated at lower specds willhold the 1nemher 29 sufiiciently firmly to prevent c1dental-stoppage ofthemachine as a result of vibrations, but-with higherspeeds, it is spindle 14, and the thread or strand drawn therefrom and passed about the guide 26 between the stop members 27 and 28 thereon. The endof the thread or strand is then passed through the igtail or eye 2%,

through the 'tensioning deviceand the--- eyeQO upon thetraveller 16, then upwardly through the eye25 and'23 to the point of application to the object upon which the braid is being formed.

In setting the tensionin devicev 25 careshould be taken to substantially balance the resistance offered by this device with the greatest tension developed in the spring 17 by the vertical reciprocatory movement of the traveller 16.

WVhen the cop has thus been properly positioned upon the carrier, thestop member 29 is raised until *the latch member in the for-mot the invention shown in Figs. 1 to 3, engages the keeper 8tosupport the member 29- above the top plate 10. When the parts are in this position the braiding machine may beset in operation, the thread or: strand holding the traveller 16 at all timesso that'the striker member-= will. be maintained out of engaging relation with the latch member 32.

In the form ot' the inventionshown in Figs. 4 to 6', the member 29 is raised'until the hooked end 39 of the latch member 38 isen a 'ed iwit-htheundorsurtace oi the top b b a of the member 29, thus establishing the same conditions as are heretofore referred to in connection with-the form of the invention shown in Figs. 1 to 3.

During a'normal operation of the chine, the traveller 16, with 'movement" of thecarrier away from the point of formation of the braid; will rise against the tension of the spring- 17, thus payingoutslack bet-Ween thetensioningdevice 25 and the obset upon which the braid 1 is being formed the light tension :of "the spring-"17 and the light weight "of the traveller offeri ng merely sutlicient resistance tothe upward niove= ill) merit. of the traveller to ensure the thread or strand being held sutliciently taut to avoid ballooning of the thread without developing suilicicnt" resistance even at extremely high speeds to c: use the breakage of the thread or strand. With the movement of the carrier toward the point. of formation of the braid. the slack termed by this movement will be taken up by the downward movement of the raveler it} under the control of the spring 17, the maximum extent of this movement. however. being instulicient to engage the .st'l'lliet' 35 or the traveller 1G with the latch member 32 or 3%.. This condition avoids the relea e ot the member 2.) under all conditions c:-;cepting a. breakage of the thread or strand or the exhaustion ot a bobbin or cop.

The combined tensioning etlect o l the spring 17, traveller it) or 10" and the tensiouing device is such as to permit the gradual feeding of the thread or straiul as rctpiiret'l in the braiding operation. the traveller taking up any slack which may be formed by the feeding of the thread or strand from the bobbin or cop.

In the event of the breakage of the thread or strand, however. the traveller 1(5 or 16 and the spring 17 will be relieved from restraining resses from the thread or strand between the carrier and the object upon which the braid being formed. thus pernitting the spring to instantly force the traveller downwardly to a point Where it will engage and release the latch member 32 or 35 and disengage it. from the stop member :29. and permit said member, with a very short: movement. to fall to a position where it will engage the. co-olierating member upon the stop mechanism of the braiding machine and cause the stoppage of the machine without such overrunning, thereof as will impair the quality of the work. The short distance which the member 25) has to more to bring it into engaging relation with said step nicclnlnism of the machine will ensure gr art rapidity in the setting of the stop mechimism. even though the member .29 may not. poss any great amount of weight. The action of the spring 17 will be so rapid that in the event of the breakage of the thread or strand irrespective of the position of the traveller when this breakage occurs. the member 29 will he released substantially instantaneotlslv. The latch mechanism itself is very sens tive, and in either term ot' the invention shown, a movement of the raveller ol a quarter of an inch will be sullicient to disengage it. to release the member 29. \Vhile l. have herein referred to the breakage of the thread or strand as the activating cause of the release of the member 29, it is obvious that the exhaustion of the thread or strand upon the bobbin or cop will have the same effect.

The guide 26 is designed primarily to ensure the smooth runnnu ol the thread or strand iron] any takeotl point upon the bobbin or cop without possilnhty ot entangling or snarling of the thread or strand adjacent the cop, notwithstamling that, a lull length regularly wound bobbin or cop is used upon the carrier instead oi the shorter specially wound bobbins or cops now generally used. The stop members .27 and 28 will limit the vertical run of the thread or strand. after leaving the cop, and prevent this thread or strand from forming a loose loop which will pass over the top of the spindle It and form the tangle or snarl above referred to. The guide memliier 2(3 and its aprairtenances will also minimize likelihood of the escape ol' the thread or st -and from the tensioning device 25. because of the tendency to avoid a rapid change in the angle ol the thread hetwcen the bobbin or cop and the pigtail or eye it.

tfarriers constructed in accordance with the invention herein described. have been found to permit an increase in the speed ot ordinary braiding machines from 5240 It. 1. M. to 360 it. P. M. with a less frequent; breakage of the t'lll'tftltl or strand than occurs with a machine using the old style of carriers and operating at lower speed. The carriers, however, are designed particularly tor use upon special high speed machines 'apable of attaining 480 l. l. M. or even higher speeds wherein likelihood of the frequent breakage of the thread or strand is not only very much increased, but in which the tcnsioniug stresses will be very much greate' and the time intervals in the movenients ot? the traveller must be very much less.

In a -arrier embodying the invention, the t'aveller lt l(5 is so light as to develop practically no moving inertia sullicicnt to place any st 'ain upon the tllltt(i or strand when reversing the movement of the travellcr from a downward to an upward dircction. thus permitting a fairl; accurate control of the tensioning condition by means of the spring 17. This result is SOtJttlCtl without interfering in any way with the stop mechanism of the machine. which, as a. result of; the unconnected relation of the traveller 1G and the member 20, permits greater reliability in the action of the traveller and of the stop member 525) as well.

It not my intention to limit. the invention to the precise details 0t. construction shown in the d 'awings. it being apparent that these are subject to wide variation in adapting the carrier embodying the invention to ditlerent types of braiding machines with which it is capable of use. In the terms of the invention showm the t'()ll.-tl'll(- tion is that commonly used in low speed braiding machines.

Hill

lltl

lit)

clainr as new and desire to have Having described the invention, what I protected by Letters Patent, is

l. A carrier for lnaiding machines embodying therein a base, a spindle for a bobbin or cop, a stem, a traveller slidably mounted on said stem, a spring acting to normally iorce saidtraveller towardssaid base, a stop member unconnected with said traveller, and slidably mounted adjacent said base, and a-latch member engageable with said stop member, and positioned in operable relation to said traveller, whereby excessive movement of said traveller by said spring will actuate said latch to release said stop member.

2. A carrier forbraiding machines embcdying therein a base, a spindlet'or a bobbin or cop, a steal, a traveller slidably mounted on said stem, an eye upon said traveller, a tensioning device engageable by the thread between said eye and said spindle, an eye above said traveller through which, the thread passes, an eye between said tensioning device and said spindle, a spring acting to normally force said traveller tewards said base, a stop member unconnected with said traveller, and slidably mounted adjacent said base, and a latch member engageable with said stop member, and positioned in operable relation to said traveller, whereby excessive movement of said traveller by said spring will actuate said latch to release said stop member.

A carrier for braiding machines embodying therein a base, a spindle for a bobbin or cop, a stem, a traveller slidably mounted on said stem, an eye upon said traveller, a tensioning device engageable by the thread between said eye and said spindle, an eye above said traveller through which the thread passes, an eye between said tensioning device and said spindle, a coiled spring encircling said stem and acting to normally force said traveller towards said base, a stop member unconnected with said traveller, and slidably mounted adjacent said base, and a latch member engageable with said stop member, and positioned in operable relation to said traveller, whereby excessive movement of said traveller by said spring will actuate said latch to release said stop member.

at. A carrier for braiding machines enibodying therein a base, a spindle for a bobbin or cop, a stem positioned at one side of said spindle, a traveller slidably mounted on said stem, a spring acting to normally force said traveller towards said base, a stop member unconnected with said traveller, and slidably mounted adjacent said base, a latch member engageable with said stop member, and positioned in operable relation to said traveller, whereby excessive movement of said traveller by said spring will actuate sa-id lateh to release said'stop member, and a-gurde member positioned upon the other side of said spindle extending "tor substan- -tially the height otthe bobbin or cop about which the thread passes.

5;1 carrier for braiding machines our bodying therein a base, a spindle for a bobbin or cop, a stem positioned at one side oil? said spindle, a traveller slidably mounted on said stem, a spring acting to normally ftorce said traveller towards said base, a stop member unconnected Wliill said traveller, I

and slidably mounted adjacent said base, a

latch inember-engageable with said stop member, and positioned inoperable relation to said traveller, whereby excessive ,movement of said travelleryby saicl'srnung will actuate said latch torelease said stop 'member, a guide mend er posiioiaed upon the other side of said spindle extending for substantially the height of the bobbin or cop about which the thread passes, and stop members carried by said guide member limiting the vertical run or the threador thread passes, an eye between said tensioning device and said spindle, a spring acting to normally force said traveller towards said base, a stop member unconnected with said traveller, and slidably mounted adjacent said base, a latch member engageable with said stop member, and positioned in operable relation to said traveller, whereby excessive movement of said traveller by said spring will actuate said latch to release said stop member, and a guide member positioned upon the other side of said spindle extending for substantially the height of the bobbin or cop about which the thread passes.

7. A carrier for braiding machines embodying therein a base, a spindle for a bobbin or cop, a stem having an eye toward the top thereof, a traveller slidably mounted upon said stem, means carried by said stem limiting the upward movement of said traveller, a tensioning device engageable by the thread and positioned between said last named means and the eye at the top 01 said I stein, an eye carried by said stem between said tensioning device and said spindle, a coiled spring encircling said stem bearing against said means so as to normally force said traveller against said base, astop member unconnected with said traveller slidably mounted upon said stem adjacent said base,

supplemental guides for said stop member,

till.

a latch mechanism comprising a spring latch member carried by and movable with said member, and having an inclined portion presented towards said traveller, and a keeper carried by said stem engageable by said latch member, and a striker upon said traveller positioned to engage said spring; latch member, whereby excessive movement of said traveller by said spring will cause the release of said stop member.

8. A carrier for braiding, machines embodying; therein a base, a spindle for :1 bobbin or cop, a stem having an eye toward the top thereof positioned at one side of said spindle. a traveller slidably mounted upon said stem, means carried by said stem limitin; the upward movement of said traveller, a tensioning device engageable by the thread and positioned between said last. named means and the eye at the top of said stem. an eye carried by said stem between said tensioning device and said spindle, a coiled sprint, encircling said stem bearing against said means so as to normally force said traveller against said base, a stop member unconnected with said traveller slidably mounted upon said stem adjacent said base, supplemental guides for said stop member, a latch mechanism comprising a spring latch member carried by and movable with said member, and having an inclined por' tion presented towards said traveller, and a keeper carried by said stein engageable by said latch member, a striker upon said traveller positioned to engage said eprin; latch member. whereby excessive movement of said traveller by said spring will cause the release of said stop member, a fl'tlltlt member positioned upon the other side of said spindle extending for substantially the height of the bobbin or cop about which the thread passes, and stop members carried by mild guide member limiting the vertical run oi the thread or strand in relation thereto.

ln witness whereof I have hereunto at fixed my signature this 28th day of May.

\VILLIAM E. COOK.

Ill) 

